What this means
Insects grew and laid eggs best at 25 degrees Celsius, compared with 29 and 33 degrees. The results may help people plan how to watch for and manage this pest.
Plain-English summary written by an AI model from the abstract. The original is below.
- Who it was tested in
- Cyamophila willieti insects kept under three temperatures in a lab
- Kind of research
- A study
The science
- Original title
- Effects of temperature on the growth, development, and reproduction of Cyamophila willieti (Hemiptera: Psyllidae) evaluated using the age-stage, two-sex life table.
- Authors
- Ye T, Liang J, Abbas N et al.
- Journal
- Bulletin of entomological research
- Published
- Oct 14, 2026
- Study type
- Study
- PMID
- 42872505 ↗
Abstract
The study examined key biological and ecological traits of Cyamophila willieti, a major pest of Styphnolobium japonicum, including its circadian mating rhythm, oviposition preference, and temperature-dependent population performance. Using the age-stage, two-sex life table approach, we compared the development, reproduction, and population growth potential of C. willieti under three temperature regimes. Results showed that mating activity followed a bimodal circadian rhythm with peaks at 12:00 and 17:00, while females showed a strong preference for ovipositing on shoot tips. C. willieti achieved higher population growth rates at 25 °C compared to 29 °C and 33 °C, with an intrinsic rate of increase (r) of 0.1885 ± 0.0086 day-1, a finite rate of increase (λ) of 1.2075 ± 0.0104 day-1, a net reproductive rate (R0) of 215.92 ± 43.00 offspring per individual, a mean longevity of 35.03 ± 2.02 days, and a fecundity of 647.75 ± 52.94 eggs per female. Compared with 29 °C, r, R0, and fecundity were 2.95-, 34.0-, and 13.6-fold higher at 25 °C, respectively, whereas most nymphs failed to develop beyond the fifth instar at 33 °C. Our results suggest that 25 °C was more favourable for the development, reproduction, and population growth of C. willieti than the higher temperatures of 29 °C and 33 °C, providing a basis for its monitoring and sustainable management.
Ye T, Liang J, Abbas N et al. Effects of temperature on the growth, development, and reproduction of Cyamophila willieti (Hemiptera: Psyllidae) evaluated using the age-stage, two-sex life table. Bulletin of entomological research. 2026. doi:10.1017/S0007485326101400. PMID: 42872505. https://pubmed.ncbi.nlm.nih.gov/42872505/